807144444 has 36 divisors (see below), whose sum is σ = 2070739944. Its totient is φ = 265031712.

The previous prime is 807144439. The next prime is 807144461. The reversal of 807144444 is 444441708.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 807144399 and 807144408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 164907 + ... + 169730.

It is an arithmetic number, because the mean of its divisors is an integer number (57520554).

Almost surely, 2^807144444 is an apocalyptic number.

It is an amenable number.

807144444 is an abundant number, since it is smaller than the sum of its proper divisors (1263595500).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

807144444 is a wasteful number, since it uses less digits than its factorization.

807144444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334714 (or 334709 counting only the distinct ones).

The product of its (nonzero) digits is 57344, while the sum is 36.

The square root of 807144444 is about 28410.2876437392. The cubic root of 807144444 is about 931.0730451637.

It can be divided in two parts, 80714 and 4444, that added together give a palindrome (85158).

The spelling of 807144444 in words is "eight hundred seven million, one hundred forty-four thousand, four hundred forty-four".